https://github.com/fabio-miguel/tdd-nodejs-katas

Various complex katas (challenges) I have completed, such as a checkout & Roman numeral converter, whilst practising the core principles of TDD. JavaScript | Jest
https://github.com/fabio-miguel/tdd-nodejs-katas

katas nodejs tdd

Last synced: about 1 month ago
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Various complex katas (challenges) I have completed, such as a checkout & Roman numeral converter, whilst practising the core principles of TDD. JavaScript | Jest

• Host: GitHub
• URL: https://github.com/fabio-miguel/tdd-nodejs-katas
• Owner: fabio-miguel
• Created: 2024-01-10T15:28:54.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2024-01-10T16:27:57.000Z (about 1 year ago)
• Last Synced: 2024-11-08T12:07:49.582Z (3 months ago)
• Topics: katas, nodejs, tdd
• Language: JavaScript
• Homepage:
• Size: 38.1 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# tdd-nodejs-katas

# About the Katas

**SPOILER**

If you haven't completed the Katas before and you don't want the solutions, don't go into the exercise folders.

# Properties of Good Tests

**Fast:** Should run within milliseconds

**Isolated:** No dependency on other tests

**Repeatable:** Doesn't require an initial state (i.e. no need to set-up anything prior)

**Timely:** Test is written when we need it.

# Core Principle

**Red** Write a failing test

**Green** Write the minimal code required to pass the test

**Refactor** Improve the quality of the code.

# Key Rules

**Only one failing test at a time**

You can't write any more tests unless the every other test is green

**Tests drive implementation**

You can't wite code that is unrelated to the test.

# Other Things to consider

**Don't Repeat Yourself (DRY)**

If you find yourself repeating code, can you optimise it? 

**Simplest passing code**

Remember, you want the simplest passing code. But you will refactor this. Eventually your tests should drive an algorithm, thus forcing you to implement real-life, business usecases.